Hey there! So glad you stopped by my kitchen. Today, we’re going to do something really fun. We’re taking a classic, old-school dessert and giving it a modern twist.
I’m talking about Key Lime Pie. But not just any key lime pie.
We’re making a crazy-smooth, super-dense Key Lime Pie Gelato using the Ninja Creami.
If you’ve ever had a real slice of key lime pie, you know what I’m talking about. That perfect mix of sweet and tart that just tastes like a sunny day. It’s a flavor that takes you straight to the Florida Keys. This recipe is my little tribute to that perfect dessert, but made way easier for those of us who love a good kitchen gadget.
Honestly, this is one of my go-to recipes when I want something that feels special but is secretly simple. Let’s get started!

Here’s a Quick Look at What We’re Doing
Think of this as our game plan. It’s super simple, I promise.
This recipe is perfect if you’re new to the Ninja Creami. Seriously. Most of the time involved is just waiting for the freezer to do its thing. The actual “work”? It’s about 5 minutes of blending.
The hardest part is just being patient. You have to make the base at least 24 hours ahead of time. But that’s actually great news. It means this is the perfect dessert to prep ahead for a party or just to have ready for a Tuesday night.
- Prep Time: 5 minutes
- Freeze Time: 24 hours
- Total Time: 24 hours, 5 minutes
- Difficulty: Easy peasy
- Equipment: Ninja Creami, a blender, and a Ninja Creami Pint Container
Want to stock your freezer? I don’t blame you. Having extra gelato bases ready to go is one of the best ways to use the Creami. Here’s a handy chart for making bigger batches.
Servings | Cream Cheese | Sugar | Vanilla Paste | Lime Curd | Half & Half | Whole Milk | Lime Juice |
1 Pint | ½ Tbsp | ⅓ Cup | 1 tsp | 2 Tbsp | ½ Cup | 1¼ Cup | 1 tsp |
2 Pints | 1 Tbsp | ⅔ Cup | 2 tsp | 4 Tbsp | 1 Cup | 2½ Cups | 2 tsp |
3 Pints | 1½ Tbsp | 1 Cup | 1 Tbsp | 6 Tbsp | 1½ Cups | 3¾ Cups | 1 Tbsp |
The All-Star Ingredients
You know what they say: great food starts with great ingredients. Let’s talk about what we’re using and why it all works so well together.
First up, a tiny bit of cream cheese. It has to be at room temperature. I learned this the hard way. If it’s cold, you’ll get little lumps in your gelato, and nobody wants that. The cream cheese adds this subtle tang that really reminds me of a cheesecake-style key lime pie.
Next, our sweeteners: plain old granulated sugar and the secret weapon, lime curd. The sugar is just for sweetness, but the lime curd… that’s where the magic is. It gives you a deep, zesty lime flavor that juice alone just can’t match. If you can find a really good, buttery lime curd at the store, grab it!
The creamy texture comes from a simple mix of half & half and whole milk. The fat content in these is just right for a dense gelato that isn’t icy. To make it smell and taste amazing, we’ll use vanilla bean paste. I love it because you get those pretty little vanilla specks, but regular vanilla extract works fine too.
Finally, a splash of fresh lime juice. This just brightens everything up at the end. And don’t worry if you can’t find actual Key limes. The regular Persian limes you see at the store will work perfectly. Just make sure you squeeze it fresh!
For that classic pie crust crunch, we’ll crumble up some graham crackers and add a little fresh lime zest. We toss those in at the very end so they stay nice and crunchy.
Step-by-Step: Let’s Make Some Gelato!
Okay, time for the fun part. Let’s do this!
Part 1: Making and Freezing the Base
First, let’s mix up our base.
In your blender, toss in the room temperature cream cheese, sugar, vanilla bean paste, lime curd, half & half, whole milk, and lime juice.
Now, blend it until it’s totally smooth. You want a thin, pourable mix with absolutely zero lumps. This is your foundation, so give it a good blend!
Pour that delicious mixture into your Ninja Creami pint container, filling it up to the max fill line.
Now for a pro tip that seriously changed my Creami game: freeze the pint for 24 hours without the lid on. I know it sounds weird, but this trick helps stop that big frozen hump from forming in the middle. It makes it way easier for the machine to do its job. Make sure your freezer is set somewhere between 9°F and -7°F.

Part 2: The Creami Transformation
This is where the magic happens. After a long 24 hours, grab your pint from the freezer. It’ll be a solid block of ice. Don’t panic.
Place the pint into the outer bowl, pop the blade lid on, and lock it into your Ninja Creami.
Select the “GELATO” button and let it rip. The machine is pretty loud, so don’t be surprised! It sounds like it’s working hard, because it is. In just a couple of minutes, it’ll turn that frozen block into a creamy base.
After that first spin, take a look. Sometimes, if my freezer is extra cold, the texture looks a little powdery. It’s a super common thing. The fix? Just add a tablespoon of milk, put it back in the machine, and hit the “RE-SPIN” button. That almost always does the trick, leaving you with a perfectly smooth gelato.
Now for the best part! Dig a small hole in the center of the gelato. Drop in your broken graham cracker pieces and sprinkle on the fresh lime zest.
Put it back in the machine and run the “MIX-INS” cycle. This cycle is much gentler, so it will swirl in the graham crackers without turning them to dust. And just like that… you’re done!

Want to Mix It Up? Make It Your Own!
The best part about cooking at home is that you can do whatever you want. Here are a few ideas I’ve played around with:
- Gluten-Free? Easy. Just use your favorite gluten-free cookies instead of graham crackers.
- Watching Sugar? You could try a 1:1 sugar substitute and find a sugar-free lime curd to make a tasty frozen yogurt version.
- Feeling Fancy? Toast the graham cracker crumbs in a little butter and cinnamon before mixing them in. Or, you could top the finished gelato with a toasted meringue. How cool is that?
How to Serve and Store Your Masterpiece
Honestly, the best time to eat this is right after you make it. That’s when the texture is absolutely perfect. I like to scoop it into a chilled bowl and add a little extra lime zest on top.
If, by some miracle, you have leftovers, you can just pop the lid on the pint and store it in the freezer.

When you want more, it will be frozen solid again. But that’s the beauty of the Creami! Just put the pint back in the machine and run it on the “GELATO” setting again. It will spin it right back to that fresh, scoopable texture in a few minutes. It’s like having freshly made gelato on demand.
I really hope you have as much fun making this as I do. Enjoy your little pint of sunshine!
PrintNinja Creami Key Lime Pie Gelato
Whip up a taste of pure sunshine with this incredibly easy Ninja Creami Key Lime Pie Gelato. It’s the perfect blend of sweet, tart, and creamy—your favorite classic dessert, brilliantly reinvented!
- Prep Time: 5 minutes
- Cook Time: None
- Total Time: 24 hours 5 minutes (includes 24-hour freeze time)
- Yield: 1 Pint 1x
- Category: Dessert
- Cuisine: American
Ingredients
For the Gelato Base:
- ½ Tbsp Cream Cheese, room temperature
- ⅓ Cup Granulated Sugar
- 1 tsp Vanilla Bean Paste
- 2 Tbsp Lime Curd
- ½ Cup Half & Half
- 1¼ Cup Whole Milk
- 1 tsp Fresh Lime Juice
For the Mix-Ins:
- 1 Graham Cracker, broken into small pieces
- ½ tsp Fresh Lime Zest
Instructions
- Blend the Base: In a blender, combine all the gelato base ingredients (cream cheese, sugar, vanilla, lime curd, half & half, milk, and lime juice). Blend until the mixture is completely smooth with no lumps.
- Freeze Solid: Pour the mixture into a Ninja Creami pint container up to the max fill line. Place the pint in the freezer, uncovered, and freeze for at least 24 hours until it’s a solid block.
- Spin & Serve: Place the frozen pint into the outer bowl, attach the blade lid, and lock it into your Ninja Creami machine. Select the GELATO function. After spinning, create a small well in the center, add the graham cracker pieces and lime zest, then run the MIX-INS cycle. Serve immediately and enjoy!
Notes
- Serving Suggestions: This gelato is best enjoyed right after spinning! Scoop it into chilled bowls and garnish with an extra sprinkle of lime zest for a fresh kick.
- Tips & Tricks: Using room temperature cream cheese is the secret to a lump-free base. If your gelato looks powdery after the first spin, just add 1 tablespoon of milk and use the RE-SPIN function—it works like a charm!
- Storage Instructions: Store any leftovers right in the pint container with the lid on. When you’re ready for another scoop, the gelato will be frozen solid again. No problem! Just run the GELATO cycle one more time to return it to that perfect, creamy texture.